Improved barrel-head machine



UNITED STATES PATENT OFFICE.

ALFRED BENSTER, OF DETROIT, MICHIGAN.

IMPFIOVED BARREL-HEAD MACHINE.

Specification forming part of Letters Patent No. 41.356, dated January:26, 1864.

To @ZZ whom it may concern.:

Be it known that I, ALFRED BENs'rER, of Detroit, in the county of Wayneand State of Michigan, have invented a new and Improved Barrel-HeadMachine; and I do hereby declare that the following is a full, clear,and

exact description of the same, reference being had to the accompanyingdrawings, forming a part of this specification, in which- Figure lrepresents a plan or top view of my invention. Fig. 2 is a transversevertical Section of the same, taken in the plane indicated by the line xFig. 1. Fig. 3is alongitudinal vertical section of the same, the line yy, Fig. 1, indicating the plane of section.

Similar letters of reference indicate corresponding parts in the threeviews.

The object of the machine which forms the subject of this invention isto plane the up per surface of a barrel'head to the desired oval shape,make the upper and lower chamfers impart to said head the desiredelliptic shape, revolve, clamp, and loosen the same automatically,without the assistance of the operator, who has nothing else to do butto arrange the pieces for a head on a table in front of the machine, andpush the same in, and in doing so the finished head-is pushed out on theopposite side of the machine and deposited on a table situated in aconvenient position to receive the same.

To enable those skilled in the art to make and use my invention, I willproceed to describe it.

A represents a frame made of wood, or any other suitable material ofsufficient strength to sustain the bearings of the different workingparts of my machine. Across the top of this frame extends the shaft B,to which the revolving planer G is rigidly attached. The shaft B isrotated by means of a belt, c, eX- tending from a pulley, fv, on thedriving-shaft D, over a pulley, c, on its end, and a belt, d, whichextends from a small pulley, e, on said shaft over a drum, f, transmitsthe motion from the shaft B to a shaft, E, which has its bearings instandards g, rising from the frame A. The shaftE bearsa bevel-pinion, h,on one and a small pulley, c', on the other end. The pinion h gears intoa bevel-wheel, t', on the top end of a vertical shaft, F, and by apinion, j, on the lower end of this shaft the motion is transmitted tothe toothed ring G. This ring rotates under four flan ged rollers, 7c,in a frame, H, and it forms the upper liaw of the clamp, between whichthe pieces of wood are clamped which are to be formed into abarrel-head. The lower jaw of this clamp consistsof a toothed ring, G',similar in every respect to the ring G. The ring G' rests on flangedrollers 7c', and it rotates in a frame, H', which is supported by bracesl, radiating from the rising and falling standard I. This standard formsthe step for the vertical arbor m, to the top of which the turn-table Jis firmly secured, and it is supported by a hinged board, K, the looseend of which rests upon the circumference of the cam L. This cam issecured to a shaft, M, to which a rotary motion is imparted by a belt,fn, extending from the pulley 'i on the end of the shaft E round apulley, p, on the end of a shaft, N, which connects by a pinion, g, andgear-wheel O with the shaft M. By imparting to the cam L a rotary motionthe standard I is raised, and the frames H H', with the toothed rings GG', and also the turntable J, are raised, and the wood, which is clampedbetween the rings and supported by the turn-table, is gradually forcedup againstthe planer C, and its surface is thereby smoothed off, and thedesired oval shape is given to it, and at the same time the edge ischamfered off from above. Simultaneously with this operation the rotarycutter P is also raised, and as the wood rotates by the action of thegear h i' and pinion j on the toothed ring G its edge is trimmed. Thecutter P is secured to an arbor, r, which has its bearings in a sash, Q,to which a rising and falling motion is imparted by the action of thecam L on the standard I and on a lever, B'. The arbor r, with thecutter, receives its motion by a belt, s, from a pulley, t, on thedrivingshaft. The barrel-head receives the desired eccentricity orellipticity by the action of a vertical shaft, R, which carries acog-wheel, S, gearing into the lower ring, G'. The bearings of the shaftR are eccentric, and as the ring G' revolves with the upper ring, G, itimparts a rotary motion to the cog-wheel S, and by the eccentricity ofthe shaft B both rings with the wood are made to deviate from the truecircular motion. When the ring G' has reached its lowest position, thecogs on its circumference pass-below the edge of the cogwheel S,throwing the latter out of gear, and

cog-wheel S can be thrown out of gear withy the rin g G'.

The operation of this machine is quite siinple, all its parts being madeto work automatically. The wood required for a head is put in themachine on the top of the lower ring, Gf, and as this ring rises by theaction oi' the cam L the wood is clamped between the two rings andforced up against the planer far enough to form the oval and the upperchamier. In the meantime a rotary motion is imparted to the rings G Gwith the wood and the lower edge is charnfered by the action of therevolving cutter P. By the action of the eccentric shaft R the head iscaused to move eccentrically under the planer and over the rotarycutter, and the desired ellpticity is imparted to it. When the head hasmade a complete revolution, the frames H H drop down. The finished headis released by the rings G Gf, and by introducing a new head on one sideof the machine the finished head is pushed out on the opposite side andde posited on a table that may be arranged for this purpose in aconvenient position.

The planer G may be so arranged that it can be adjusted on its shaft ina longitudinal direction, thus giving the machine the ca* paeity forcutting different-sized heads. In this case the revolving cutter P andsash Q must be so constructed that they movein and out with the planerC, for the purpose of varying the size of the head.

The upper ring, G, is designed to be furnished on its under side withfine teeth or a rib of india-rubber, so as to clasp more rmly the unevenhead-pieces.

What I claim as new, and desire to secure by Letters Patent, is-

l. The employment or use oi' the revolving planer C, as described, forthe purpose of turning, planing, and chamfering barrel-heads at oneoperation.

2; The revolving toothed rings G G and rising and falling frames H H',in combination with the planer C, constructed and operating in themanner and for the purpose substantially as described.

3. rlhe turn-table J', in combination with the toothed rings G G and camL, constructed and operating substantially as and for the purposespecified. y

4. Imparting to the rings G G', turn-table J, and revolving cutter P, arising and falling motion by the action of the cam L, as and for thepurposes set forth.

5. The rising and falling standard I, hinged board K, and lever R, incombination with the cam L, frames H H', and sash Q, all constructed andoperating substantially as and for the purpose described.

6.- The eccentric shaft R, with cog-wheel S, in combination with thetoothed ring G', constructed and operating substantially as an forvthepurpose set forth.

7. Imparting to the head to be turned an eccentric motion under theplaner, as and for the purposes specified.

ALFRED BENSTER.

Witnesses:

JN0. GRAVES, THos. W. LooKwooD.

